QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

3 km WNW of Pole Ojea, Puerto Rico

· 25 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cabo Rojo Municipio 4 kmLajas Municipio 19 kmHormigueros Municipio 19 kmSan Germán Municipio 23 kmSabana Grande Municipio 30 kmGuánica Municipio 31 kmAñasco Municipio 34 kmMaricao Municipio 36 kmLas Marías Municipio 37 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.7 (md)
Depth
25 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 4 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2995 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 95× the energy of this one
  4. This earthquake M 1.7 about 10 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 17.9886, -67.2170. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 4 km (2 mi) WSW of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 19 km (12 mi) W of here earthquakes near Lajas Municipio
Hormigueros Municipio, PR 19 km (12 mi) SSW of here earthquakes near Hormigueros Municipio
San Germán Municipio, PR 23 km (14 mi) SW of here earthquakes near San Germán Municipio
Sabana Grande Municipio, PR 30 km (19 mi) WSW of here earthquakes near Sabana Grande Municipio
Guánica Municipio, PR 31 km (20 mi) W of here earthquakes near Guánica Municipio

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

55 earthquakes have been recorded within 50 km since this one.

  1. 1.8 0 km ESE of La Parguera, Puerto Rico
  2. 1.9 4 km WSW of Las Marías, Puerto Rico
  3. 2.2 1 km SW of Espino, Puerto Rico
  4. 1.6 Puerto Rico region
  5. 1.8 6 km WSW of San Sebastián, Puerto Rico
  6. 2.2 11 km WNW of Pole Ojea, Puerto Rico
  7. 2.1 7 km SW of Tallaboa, Puerto Rico
  8. 2.0 2 km S of Pole Ojea, Puerto Rico
  9. 1.7 3 km SE of Guánica, Puerto Rico
  10. 1.7 12 km W of Adjuntas, Puerto Rico
  11. 1.8 14 km S of Guánica, Puerto Rico
  12. 2.3 3 km W of Pole Ojea, Puerto Rico
  13. 2.4 4 km SSE of Lajas, Puerto Rico
  14. 2.8 9 km W of Mayagüez, Puerto Rico
  15. 1.7 2 km NNE of Mayagüez, Puerto Rico

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.